About Citrine Promise Rings. All our Citrine Promise Rings are available in a choice of gems and precious metals. You can also add your own personal meaning to any of our Citrine Promise Rings, creating a beautiful memory and brilliant reminder. We use only the highest quality materials to craft our Citrine Promise Rings with meticulous attention to detail. Our precious metals are recycled or responsibly mined. We hand-select each conflict-free gem in to perfectly complement your selection from our Citrine Promise Rings. The profile, textures, and details of our Citrine Promise Rings add individuality and style to everything you wear. When our work is done and you open that box, you'll see your design from our Citrine Promise Rings is even more striking when brought to life in the finest precious materials.